Answer:
The control variable is the soldier.
Explanation:
The same soldier is used throughout the test
The rigth answer is 14.7N
The law of gravitation thus makes it possible to calculate a force exerted between two objects. In a terrestrial reference system, we can then calculate the force exerted between the Earth and an object.
The law applied in this case is P = mass x g (gravitational constant = 9.8 N / kg)
if a book weighs 1.5 kg then: P = 1.5 x 9.8 = 14.7N
I'm not exactly sure of your question but here's what i think your asking, Darwin and scientists today have discovered that the ancient organisms whose remains they find look like organisms alive today because they are the living organisms' ancestors or evolved from a common ancestor. They provide valuable information about evolution and how life formed
With the sequence of the gene-coding regions of the human genome in hand and the development of newer sequencing methods, scientists are able to
1. develop new forensic tests that can help in the identification of the convict.
2. diagnose genetic diseases before their onset.
3. develop customised medicines based on the genetic profile of the patient.
4. therapeutically target the cancer causing genes (oncogenes) in the patients.
5. understand the inheritance of genes especially the rare mutations in a population.
